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OEM unlock problem with SM-G955FD in Canada

Hi guys, I'd really appreciate your help so I can get OEM unlock back on my Samsung S8+ dual sim SM-G955FD here in Canada. I'm on Android 8.0.0.
I've tried many of the methods described on this forum and elsewhere without luck. I've even left my phone charging for over a week, with and without a sim. Also no luck.
My guess is that since the model of my phone is not a model imported into Canada by Samsung, and since I understand Samsung unlocks the OEM security feature by sending a signal, Samsung won't send that OEM unlock signal to an unofficial phone.
This mess started when I unsuccessfully tried to root my phone. I must have made a mistake, so I figured the best way to try again would be to reinstall a stock image. Instead of the original Android 7 I installed Android 8 (which also changed the "Samsung Experience" version from 8 to 9). The phone now happily works, but no OEM unlock and so I cannot root.
Please help me get OEM unlock back on my phone.
Thanks so much
D, stuck in Toronto

Did you succeed
the same for me more oem unlock
When I received it it was already on Oreo version bootloader v3 and updated to v5
in v3 oreo oem unlock is turn on
update v5 7 day wait
i have message erasing recovery without admin to odin

OnePlus 7 Pro T-Mobile network locked after android 10 open beta update

Hi, so I had converted my T-Mobile OP7 to the international version. I then contacted T-Mobile and got my phone unlocked. After that I updated my OP7 to Android 10 open beta yet somehow my phone became networked locked. I tried everything from trying to use the T-Mobile unlock app again to resetting the entire phone. Still no dice. Will I have to downgrade or are there any solutions to this? Thanks in advance

dizzyd1998 said:
Hi, so I had converted my T-Mobile OP7 to the international version. I then contacted T-Mobile and got my phone unlocked. After that I updated my OP7 to Android 10 open beta yet somehow my phone became networked locked. I tried everything from trying to use the T-Mobile unlock app again to resetting the entire phone. Still no dice. Will I have to downgrade or are there any solutions to this? Thanks in advance
Click to expand...
Click to collapse
Well you have to downgrade in the first place to use the T-Mobile unlock app, if it isn't unlocking your phone that's because the line is locked.

Try and download device unlock for pixel only from the playstore and see if that works.

flash back to Tmobile ROM and unlock via the Tmobile unlock app. thats what i had too do

OEM Unlock not found

I do not see OEM Unlock in Developer Options .
I have tried setting date back 7 days and it still didn't work and answer will help thanks.

Have you just bought the phone?
On exynos, you have to use phone, normally, for 7 days, 168 hours, then it'll be displayed in Developer Options. (Focus on using phone normally).
What's your phone variant & model?

Mohamedkam000 said:
Have you just bought the phone?
On exynos, you have to use phone, normally, for 7 days, 168 hours, then it'll be displayed in Developer Options. (Focus on using phone normally).
What's your phone variant & model?
Click to expand...
Click to collapse
Okay and the model is SM-N970U1
Yes I just bought it

Jufroninja said:
Okay and the model is SM-N970U1
Yes I just bought it
Click to expand...
Click to collapse
The US Snapdragon variants dont have an unlocked bootloader.

Galaxy note 10 locked network after upgrade android 10

Hii, my question is, why my galaxy note 10 if was unlocked international, after i upgrade for Android 10 this say me that my network is locked again and i do not have permission for use my another network that not be t-Mobile. Please tell me why happennig this.

See for similar issue and things to try
https://forum.xda-developers.com/showpost.php?p=81329177&postcount=2

Did you have a service unlock for you? On new Samsung phones they are doing something called carrier relock where you can lock the phone to 64 different carriers but once you upgrade you lose it.

bcombel said:
Did you have a service unlock for you? On new Samsung phones they are doing something called carrier relock where you can lock the phone to 64 different carriers but once you upgrade you lose it.
Click to expand...
Click to collapse
This can be remove the carrier relock?

Is there a way to tell if your phone is unlocked? I have the unlocked US version but when I upgraded to Android 10 it had a app for carrier lock briefly. When I clicked it, it did say it was locked and I thought it was a bug because I have the -1 version.

Herox said:
Is there a way to tell if your phone is unlocked? I have the unlocked US version but when I upgraded to Android 10 it had a app for carrier lock briefly. When I clicked it, it did say it was locked and I thought it was a bug because I have the -1 version.
Click to expand...
Click to collapse
Yeah, is unlocked international, i'm not live on usa, and i was using until this upgrade to android 10. Tell me if ther is a way to remove this please

Unlocked non-branded with grayed out oem after MSM?.

I used MSM to go back to stock android 10 from an A11 custom ROM and now my Unlocked bought from OnePlus non carry phone has its OEM unlock toggle greyed out. I tried to do the MSM again and the same thing. Does anybody have any experience with this?.
Thanks very much

iTryH said:
I used MSM to go back to stock android 10 from an A11 custom ROM and now my Unlocked bought from OnePlus non carry phone has its OEM unlock toggle greyed out. I tried to do the MSM again and the same thing. Does anybody have any experience with this?.
Thanks very much
Click to expand...
Click to collapse
u need to lock ur bootloader again so the oem not greyed out

iTryH said:
I used MSM to go back to stock android 10 from an A11 custom ROM and now my Unlocked bought from OnePlus non carry phone has its OEM unlock toggle greyed out. I tried to do the MSM again and the same thing. Does anybody have any experience with this?.
Thanks very much
Click to expand...
Click to collapse
I was having the same issue earlier but noticed that after I turned the data back on and it connected that it went gray and slid over.